On todays Twitter Daily deal is Basic Questions to End of Life. I thought that would be a good addition to my library, but it turns out I already have it. It made me wonder, when did I buy it and why do I not know I have it. With over 6K+ resources, I'm sure some get lost in the shuffle. But is there a way to know when I added it to my library? It doesn't show up in any orders, so I'm thinking package.